johny Posted Thursday at 14:05 Report Share Posted Thursday at 14:05 3 hours ago, James H said: Been out all morning in the car and its frequently dropping slightly below temp when cruising, many have mentioned temps rising as expected but no talk of temps dropping, is this also perfectly normal considering its 21°C out and I'm still on the 88° stat ? As I say engine temperature will go up and down and the gauge reading is pretty unimportant because who knows what actual temperature it relates to? The only critical thing is if theres a problem such as poor running or boiling over (assuming youre using water based coolant this last protects you from ever damaging the engine through overheating). Really it would be prudent to run the engine until it does this and take note of the gauge reading so in future youll know if youre getting close to that point.... Link to comment Share on other sites More sharing options...
James H Posted Thursday at 14:07 Author Report Share Posted Thursday at 14:07 1 minute ago, johny said: As I say engine temperature will go up and down and the gauge reading is pretty unimportant because who knows what actual temperature it relates to? The only critical thing is if theres a problem such as poor running or boiling over (assuming youre using water based coolant this last protects you from ever damaging the engine through overheating). Really it would be prudent to run the engine until it does this and take note of the gauge reading so in future youll know if youre getting close to that point.... Cheers Johny, hows the feasibility study coming on, are we close ? Link to comment Share on other sites More sharing options...
johny Posted Thursday at 14:11 Report Share Posted Thursday at 14:11 Might make progress the weekend but youre right needs a sat speed as of course Ive got non standard size tyres🤪 Link to comment Share on other sites More sharing options...
James H Posted Thursday at 14:15 Author Report Share Posted Thursday at 14:15 Would I be right in thinking that with carbs it will always be quicker to feather the throttle than flooring it ? Since the paint theory didn't pan out just want every possible advantage going... Link to comment Share on other sites More sharing options...
johny Posted Thursday at 14:16 Report Share Posted Thursday at 14:16 You can feather, I'll be flooring! 1 Link to comment Share on other sites More sharing options...
johny Posted Thursday at 14:19 Report Share Posted Thursday at 14:19 of course with a rolling start speedo inaccuracy has less effect on the time measured doesnt it.... Link to comment Share on other sites More sharing options...
James H Posted Thursday at 14:43 Author Report Share Posted Thursday at 14:43 23 minutes ago, johny said: of course with a rolling start speedo inaccuracy has less effect on the time measured doesnt it.... My eyes are going again... I don't even have one, the kind suggestion for the use of GPS readings was actually a plea 🤪 What rpm are we going to be doing in 4th at 60 mph ? Link to comment Share on other sites More sharing options...
johny Posted Thursday at 14:49 Report Share Posted Thursday at 14:49 Ah yes the back axle ratio used will make a big difference with a 4.11 giving an unfair advantage on acceleration... Link to comment Share on other sites More sharing options...
James H Posted Thursday at 14:55 Author Report Share Posted Thursday at 14:55 1 minute ago, johny said: Ah yes the back axle ratio used will make a big difference with a 4.11 giving an unfair advantage on acceleration... Its all over my head Johny... thats why having merely come up with the idea I then burdened you with all the hard work... still when all is set in place and ready, you floor it, I'll be feathering ! Link to comment Share on other sites More sharing options...
johny Posted Thursday at 15:04 Report Share Posted Thursday at 15:04 Right I'll throw it right back at you - youve got to confirm your axle ratio first😂 Link to comment Share on other sites More sharing options...
James H Posted Thursday at 15:21 Author Report Share Posted Thursday at 15:21 4 minutes ago, johny said: Right I'll throw it right back at you - youve got to confirm your axle ratio first😂 If it makes things fair, I'll do it ! Since we're all scattered all over the place it'll be great to have a reference for all Triumph six cylinders, not just Vitesses, that is relatively safe and easy to do 👍 The only possible issue I can think of is if its best done in good weather those of us over the border will get our times in within a matter of days while the UK times could arrive anywhere between now and spring 2025 🤪 Link to comment Share on other sites More sharing options...
johny Posted Thursday at 15:25 Report Share Posted Thursday at 15:25 Its not so much fair as relevant because the test is to give a guide as to how well our engines are set up but unless all axle ratios are the same (3.89) it becomes pretty meaningless☹️ Link to comment Share on other sites More sharing options...
James H Posted Thursday at 15:27 Author Report Share Posted Thursday at 15:27 Just now, johny said: Its not so much fair as relevant because the test is to give a guide as to how well our engines are set up but unless all axle ratios are the same (3.89) it becomes pretty meaningless☹️ Ooooh, ok so you said with the T9 in 4th it'll be 1:1 so you just need to know what diff I've got ? 1 Link to comment Share on other sites More sharing options...
James H Posted Thursday at 15:46 Author Report Share Posted Thursday at 15:46 (edited) Ok the pennys dropped, since we both have 2 litre Mk1 Vitesses we test the theory and if others want to contribute times, so much the better... So it turns out its actually a Mk2 3.89, we're all good ! Iain mentioned on the other thread that "Your final drive ratio is odd. BGH and Chris the main guy are masters of the T9 and very helpful and always open for a chat." I since discovered an alarming receipt in the cars history for a 5th gear so that needs investigating but 4th should be ok 👍 Edited Thursday at 16:10 by James H Link to comment Share on other sites More sharing options...
johny Posted Thursday at 16:12 Report Share Posted Thursday at 16:12 23 minutes ago, James H said: Ok the pennys dropped, since we both have 2 litre Mk1 Vitesses we test the theory and if others want to contribute times, so much the better... Yes dont need anyone else because if your car beats mine its the best there is🤣 Link to comment Share on other sites More sharing options...
James H Posted Thursday at 16:16 Author Report Share Posted Thursday at 16:16 You've never shared any photos but an educated guess would be that with all your fettling mine is a lemon by comparison plus I'm running timing below TDC, I think you're safe my friend Link to comment Share on other sites More sharing options...
James H Posted Thursday at 16:18 Author Report Share Posted Thursday at 16:18 Beware though, I'm a happy loser as long as I eventually win so we'll be repeating this until thats the case 🤣 Link to comment Share on other sites More sharing options...
johny Posted Thursday at 16:21 Report Share Posted Thursday at 16:21 Ive had it since 1988 so itd better be running right by now but we shall see.... Link to comment Share on other sites More sharing options...
James H Posted Thursday at 16:26 Author Report Share Posted Thursday at 16:26 One last question then, what revs should we be doing at 20 mph and at 60 mph ? Link to comment Share on other sites More sharing options...
johny Posted Thursday at 16:49 Report Share Posted Thursday at 16:49 According to mintylamb.co.uk/gearspeed/ with my size tyres I'll be doing 1118rpm at 20mph and 3354rpm at 60mph but of course my wheels could be spinning😮 Link to comment Share on other sites More sharing options...
James H Posted Thursday at 17:40 Author Report Share Posted Thursday at 17:40 Sensing your growing self doubt Johny I bit the bullet and finally convinced the wife to jump in the car with me ( she actually ended up trying to convince me to do more runs ! ) and do a preliminary run... So using a C60 GPS speedometer with a passenger and the aforementioned "emergency tool kit" still in the car I maintained a steady 20mph until she said go, in 4th, in the dry, on the level. The average of four runs was, drum roll please... 14 secs (best was 13.5) The tacho read approx 1300 rpm at 20mph, forgot to check at 60. If its appalling its because I floored it instead of feathering it ! So I've got the ball rolling and however this rates I will end up winning even if we're the last two ICE cars on the road 🤣 Link to comment Share on other sites More sharing options...
James H Posted Thursday at 17:44 Author Report Share Posted Thursday at 17:44 I reckon without the ballast and some masterful feathering of the throttle I can get that down to at least a 7 or 8 🤪 Link to comment Share on other sites More sharing options...
johny Posted Thursday at 17:47 Report Share Posted Thursday at 17:47 Hmmm new the Vitesse was billed as accelerating faster than an E type (up to 30mph) but I suppose back then everyone was on drugs😵💫 I'll get cracking on testing mine but is yours soft or hard top? 1 Link to comment Share on other sites More sharing options...
James H Posted Thursday at 17:49 Author Report Share Posted Thursday at 17:49 1 minute ago, johny said: Hmmm new the Vitesse was billed as accelerating faster than an E type (up to 30mph) but I suppose back then everyone was on drugs😵💫 I'll get cracking on testing mine but is yours soft or hard top? Not telling... might serve as an excuse later 1 Link to comment Share on other sites More sharing options...
Steve P Posted Thursday at 17:54 Report Share Posted Thursday at 17:54 I can try my Vitesse MK 1 CV if you like. 2.5 engine Saloon gearbox with O/D, 3:27 Diff, CV shafts, 10:1 CR, rolling roaded at 172BHP.. Will that work?. Steve Link to comment Share on other sites More sharing options...
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